Add memcpy, memmove and memset.
Add memcpy, memmove and memset.

Change-Id: If7af7593c96324717f3c0f26acc3e9fa9ea24f49

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst